package com.atguigu.lease.web.app.service.impl;


import com.aliyun.dysmsapi20170525.Client;
import com.aliyun.dysmsapi20170525.models.SendSmsRequest;
import com.atguigu.lease.common.exceptions.LeaseException;
import com.atguigu.lease.common.jwts.JwtUtil;
import com.atguigu.lease.common.redis.RedisConstant;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.model.entity.UserInfo;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.app.service.LoginService;
import com.atguigu.lease.web.app.service.UserInfoService;
import com.atguigu.lease.web.app.vo.user.LoginVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import org.apache.commons.lang3.ObjectUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.Objects;
import java.util.Random;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {


    @Autowired
    private final RedisTemplate redisTemplate;
    @Autowired
    private final Client client;
    @Autowired
    private UserInfoService userInfoService;

    public LoginServiceImpl(@Qualifier("redisTemplate") RedisTemplate redisTemplate, Client client) {
        this.redisTemplate = redisTemplate;
        this.client = client;
    }

    @Override
    public void sendCode(String phone) throws Exception {
        String key =  RedisConstant.APP_LOGIN_PREFIX + phone;
        //1.根据手机号去redis先获取是否存在
        Boolean haskey = redisTemplate.hasKey(key);
        if(haskey){
            //有,没有过期,不能发送
            throw new LeaseException(ResultCodeEnum.APP_SEND_SMS_TOO_OFTEN);
        }
        //2.不存在,生成一个6位的随机数字
        Random random = new Random();
        int code = 100000 + random.nextInt(900000);
        //4.发送短信验证码
        SendSmsRequest sendSmsRequest = new SendSmsRequest();
        sendSmsRequest.setPhoneNumbers(phone);
        sendSmsRequest.setSignName("阿里云短信测试");
        sendSmsRequest.setTemplateCode("SMS_154950909");
        sendSmsRequest.setTemplateParam("{\"code\":\"" + code + "\"}\n");
        client.sendSms(sendSmsRequest);
        //3.将数字和手机号存到redis
        redisTemplate.opsForValue().set(key,code,RedisConstant.APP_LOGIN_CODE_TTL_SEC, TimeUnit.SECONDS);
    }

    @Override
    public String customLogin(LoginVo loginVo) {
        //1.判断手机号码和验证码是否为空
        if(ObjectUtils.isEmpty(loginVo.getPhone())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_PHONE_EMPTY);
        }
        if(ObjectUtils.isEmpty(loginVo.getCode())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EMPTY);
        }
        //2.校验验证码,判断验证码是否过期和验证码是否相等
        String key = RedisConstant.APP_LOGIN_PREFIX + loginVo.getPhone();
        String code = redisTemplate.opsForValue().get(key).toString();
        if(code == null ){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EXPIRED);
        }
        if(!code.equals(loginVo.getCode())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_ERROR);
        }
        //3.判断用户是否存在,不存在则注册
        LambdaQueryWrapper<UserInfo> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(UserInfo::getPhone,loginVo.getPhone());
        UserInfo userInfo = userInfoService.getOne(queryWrapper);
        if (userInfo  == null){
            userInfo = new UserInfo();
            userInfo.setPhone(loginVo.getPhone());
            userInfo.setStatus(BaseStatus.ENABLE);
            userInfo.setNickname("用户"+loginVo.getPhone().substring(7,11));
            userInfoService.save(userInfo);
        }
        //4,判断用户是否被禁用
        if(userInfo.getStatus().equals(BaseStatus.DISABLE)){
            throw new LeaseException(ResultCodeEnum.APP_ACCOUNT_DISABLED_ERROR);
        }
        //5.创建并返回token
        return JwtUtil.createToken(userInfo.getId(),loginVo.getPhone());

    }
}
